[feat] add nist.gov vulnerability search

searx/engines/nvd.py

@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+"""National Vulnerability Database (it)"""
+
+from urllib.parse import urlencode
+from datetime import datetime
+from searx.result_types import EngineResults
+
+about = {
+    "website": 'https://nvd.nist.gov',
+    "wikidata_id": "Q6979334",
+    "official_api_documentation": None,
+    "use_official_api": False,
+    "require_api_key": False,
+    "results": "JSON",
+}
+
+base_url = "https://nvd.nist.gov/extensions/nudp/services/json/nvd/cve/search/results"
+categories = ['it']
+paging = True
+results_per_page = 10
+
+
+def request(query, params):
+    start_index = (params["pageno"] - 1) * results_per_page
+
+    query_params = {
+        "resultType": "records",
+        "keyword": query,
+        "rowCount": results_per_page,
+        "offset": start_index,
+    }
+
+    params["url"] = f"{base_url}?{urlencode(query_params)}"
+    params['headers']['Referer'] = "https://nvd.nist.gov/vuln/search"
+
+    return params
+
+
+def response(resp) -> EngineResults:
+    results = EngineResults()
+    search_res = resp.json()
+
+    for item in search_res['response'][0]['grid']['vulnerabilities']:
+
+        cve_id = item["cve"]["id"]
+        description = item["cve"]["descriptions"][0]["value"]
+        date = datetime.strptime(item["cve"]["published"], "%Y-%m-%dT%H:%M:%S.%f")
+
+        # Extract severity (Low, Medium, High, or Critical) and CVSS score, if available
+        info = item["cve"].get("metrics", {}).get("cvssMetricV31", [{}])[0].get("cvssData", {})
+        severity = info.get("baseSeverity")
+        cvss_score = info.get("baseScore")
+
+        metadata = ""
+        if severity and cvss_score is not None:
+            metadata = f"Severity: {severity} | CVSS Score: {cvss_score}"
+
+        results.add(
+            results.types.MainResult(
+                url=f'https://nvd.nist.gov/vuln/detail/{cve_id}',
+                title=cve_id,
+                publishedDate=date,
+                metadata=metadata,
+                content=description,
+            )
+        )
+
+    return results

searx/settings.yml

@@ -2445,6 +2445,11 @@ engines:
     shortcut: mp
     disabled: true
 
+  - name: national vulnerability database
+    engine: nvd
+    shortcut: nvd
+    disabled: true
+
   - name: naver
     categories: [general, web]
     engine: naver